Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of the French Verb décadenasser

Introduction to the verb décadenasser

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The English translation of the French verb décadenasser is “to unlock”.

Pronunciation: [day-ka-den-a-say]

Décadenasser comes from the prefix “dé-“, meaning “un-” or “de-“, and the verb “cadenasser”, meaning “to lock”. It is primarily used in everyday French to refer to the action of unlocking something, such as a door or a lock.

In the Subjonctif Plus-que-parfait tense, décadenasser is used to express a hypothetical or unrealized action in the past. It is formed by conjugating the auxiliary verb “avoir” in the Subjonctif Plus-que-parfait tense and adding the past participle of décadenasser, which is “décadenassé”.

Examples:

  1. J’aurais décadenassé la porte si j’avais eu la clé. (I would have unlocked the door if I had had the key.)
  2. Tu aurais décadenassé la boîte s’il te l’avait demandé. (You would have unlocked the box if he had asked you.)
  3. Ils auraient décadenassé le coffre-fort s’ils avaient eu le code. (They would have unlocked the safe if they had known the code.)

Translation:

  1. I would have unlocked the door if I had had the key.
  2. You would have unlocked the box if he had asked you.
  3. They would have unlocked the safe if they had known the code.

Table of the Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of décadenasser

Pronoun Conjugation Example Usage English Translation
je eusse décadenassé Si j’avais eu la clé, j’aurais pu décadenasser la porte. If I had the key, I could have unlocked the door.
tu eusses décadenassé Tu m’avais promis de m’aider à décadenasser cette chaîne. You had promised to help me unlock this chain.
il eût décadenassé Il aurait été plus facile de décadenasser le vélo avec un tournevis. It would have been easier to unlock the bike with a screwdriver.
elle eût décadenassé Si elle avait eu plus de temps, elle aurait pu décadenasser le coffre-fort. If she had more time, she could have unlocked the safe.
on eût décadenassé On aurait dû décadenasser la porte avant de partir. We should have unlocked the door before leaving.
nous eussions décadenassé Nous aurions pu décadenasser la porte ensemble. We could have unlocked the door together.
vous eussiez décadenassé Si vous aviez la clé, vous auriez pu décadenasser la boîte aux lettres. If you had the key, you could have unlocked the mailbox.
ils eussent décadenassé Ils m’ont demandé de décadenasser la chaîne, mais je n’avais pas le bon outil. They asked me to unlock the chain, but I didn’t have the right tool.
elles eussent décadenassé Elles auraient pu décadenasser la porte en utilisant un trombone. They could have unlocked the door using a paperclip.

Other Conjugations for Décadenasser.

   
    Le Present (Present Tense) Conjugation of the French Verb décadenasser
   

    Imparfait (Imperfect) Tense Conjugation of the French Verb décadenasser
   

    Passé Simple (Simple Past) Tense Conjugation of the French Verb décadenasser
   

    Passé Composé (Present Perfect) Tense Conjugation of the French Verb décadenasser
   

    Futur Simple (Simple Future) Tense Conjugation of the French Verb décadenasser
   

    Futur Proche (Near Future) Tense Conjugation of the French Verb décadenasser
   

    Plus-que-parfait (Pluperfect) Tense Conjugation of the French Verb décadenasser
   

    Passé Antérieur (Past Anterior) Tense Conjugation of the French Verb décadenasser

    Futur Antérieur (Future Anterior) Tense Conjugation of the French Verb décadenasser

    Subjonctif Présent (Subjunctive Present) Tense Conjugation of the French Verb décadenasser

    Subjonctif Passé (Subjunctive Past) Tense Conjugation of the French Verb décadenasser
   

    Subjonctif Imparfait (Subjunctive Imperfect) Tense Conjugation of the French Verb décadenasser

    Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense Conjugation of the French Verb décadenasser
   

    Conditionnel Présent (Conditional Present) Tense Conjugation of the French Verb décadenasser
   

    Conditionnel Passé (Conditional Past) Tense Conjugation of the French Verb décadenasser

    L’impératif Présent (Imperative Present) Tense Conjugation of the French Verb décadenasser

    L’infinitif Présent (Infinitive Present) Tense Conjugation of the French Verb décadenasser
    (this article)

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Décadenasser – About the French Subjonctif Plus-que-parfait (Subjunctive Pluperfect) Tense

The French Subjonctif Plus-que-parfait, also known as the Pluperfect Subjunctive, is a verb tense used to express actions or states that occurred before another action in the past, and it’s used in situations where the indicative mood is in the past subjunctive or conditional mood.
NOTE: To take a deep dive into all the French tenses then see my article on Mastering French Tense Conjugation.

Formation

To form the Subjonctif Plus-que-parfait, you start with the imperfect subjunctive form of the auxiliary verb “avoir” or “être,” followed by the past participle of the main verb. 
For “avoir” verbs: Take the imperfect subjunctive form of “avoir” (e.g., j’eusse, tu eusses, il/elle eût, nous eussions, vous eussiez, ils/elles eussent). Add the past participle of the main verb. 
For “être” verbs: Take the imperfect subjunctive form of “être” (e.g., je fusse, tu fusses, il/elle fût, nous fussions, vous fussiez, ils/elles fussent). Add the past participle of the main verb.

Common Everyday Usage Patterns

Hypothetical Situations

The Subjonctif Plus-que-parfait is often used to express hypothetical or unreal actions that occurred before another past action.
For example: J’aurais aimé que tu aies fini ton travail avant que je sois arrivé. (I would have liked for you to have finished your work before I arrived.) 

Reported Speech

In reported speech, you may use the Subjonctif Plus-que-parfait to convey what someone said or thought in the past. 
For example: Il m’a dit qu’il avait peur que je n’aie pas compris. (He told me that he was afraid that I hadn’t understood.) 

Doubt, Wishes, and Emotions

This tense can also be used to express doubt, wishes, and emotions about past actions. 
For example: Je doutais qu’il eût dit la vérité. (I doubted that he had told the truth.) 
J’aurais souhaité que tu fusses venu. (I would have wished for you to have come.)

Interactions with Other Tenses

Present Subjunctive

The Subjonctif Plus-que-parfait can be used to describe past actions when the main verb is in the present subjunctive. 
For example: “Il faut que j’aie fini mon travail avant que tu partes.” (I must have finished my work before you leave.) 

Imperfect Subjunctive

It’s common to use the Subjonctif Plus-que-parfait with the imperfect subjunctive in complex sentences. 
For example: “Il m’avait dit qu’il fût rentré avant la fin de la journée.” (He had told me that he had returned before the end of the day.) 

Conditional

When the main verb is in the conditional mood, the Subjonctif Plus-que-parfait can be used to express past unreal conditions. 
For example: “Si j’avais su, j’aurais voulu que tu aies réussi.” (If I had known, I would have wanted you to have succeeded.)

Summary

The Subjonctif Plus-que-parfait is a complex tense used to convey nuanced meanings in French. While its usage may seem intricate, it becomes more intuitive with practice and exposure to the language. It’s important to understand the context in which it’s used, as it often conveys subtleties of time, conditionality, and emotion in French sentences.

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